I am running Vista Ultimate on a Asus P5LD2 motherboard with a 2.8 GHz Intel D CPU, 3 GB of memory and lots of disk space. No problems with other applications or services. IIS 7.0 is installed and running, and I can browse to files in inetpub/wwwroot.

I have just installed PHP 4.4.7 (this is for testing prior to final publication via a web hosting service, and the hosting service's server doesn't support 5.x) and the latest version of MySQL (5.0.37). Both seem to be working properly. Browsing a test file invoking phpInfo () produces the expected output (including confirmation that MySQL support is loaded), and the MySQL command line connects to the server and responds sanely.

I installed phpMyAdmin 2.10.1 according to the instructions (into inetpub\wwwroot\phpMyAdmin). When I tried to use the phpMyAdmin configuration wizard, I got a "page not found" error, which I thought rather odd. I confirmed that a copy of my php test file placed in the appropriate directory worked correctly, so there wasn't a path name or permissions problem, but I then decided to create a config file manually rather than investigating further. I mention this problem in case it provides a clue to what follows.

Now, invoking phpMyAdmin/index.php produces a blank page with a two-tone red error flag at the top, which says, supremely unhelpfully, "phpMyAdmin - Error". I have tried a few minor tweaks to config.inc.php without changing things by one iota.

Does anyone have any clues as to what might be going on

The $cfg['PmaAbsoluteUri'] = variable is set correctly? Also make sure the host is set to localhost.

Thanks for your response.
It was a combination of errors and misunderstandings, now fixed. https://sourceforge.net/forum/message.php?msg_id=4306227 points to one of the messages in a thread which gives more details.